The SAGA Light Source (SAGA-LS) is the first third-generation synchrotron light source designed, constructed and operated by the local government, Saga Prefecture, in Japan for the promotion of scientific researches and industrial applications in Kyushu area. The SAGA-LS consists of a 250-MeV electron linac injector and a 1.4-GeV storage ring with eight double-bend (DB) cell and eight 2.93-m long straight sections. The DB cell structure with a distributed dispersion system was chosen to produce a compact and low cost ring of 75.6-m long circumference. The commissioning began on August 24, 2004. The first synchrotron light was observed on November 12. The commissioning goal of 1.4 GeV–100 mA was achieved on August 25, 2005. The SAGA-LS was opened to users in February 17, 2006.
